<template>
  <Dialog :title="dialogTitle" v-model="dialogVisible">
    <el-form
      ref="formRef"
      :model="formData"
      :rules="formRules"
      label-width="100px"
      v-loading="formLoading"
    >
      <el-form-item label="所属菜单" prop="parentId">
        <el-tree-select
            v-model="formData.menuId"
            :data="menuTree"
            :props="defaultProps"
            check-strictly
            default-expand-all
            placeholder="请选择菜单"
        />
      </el-form-item>

      <el-form-item label="标题" prop="title">
        <el-input v-model="formData.title" placeholder="请输入标题" />
      </el-form-item>
      <el-form-item label="简介" prop="introduction">
        <el-input v-model="formData.introduction" placeholder="请输入简介" />
      </el-form-item>
      <el-form-item label="内容" prop="content">
        <Editor v-model="formData.content" height="150px" />
      </el-form-item>
      <el-form-item label="作者" prop="author">
        <el-input v-model="formData.author" placeholder="请输入作者" />
      </el-form-item>
      <el-form-item label="缩略图" prop="thumbnail">
        <UploadImg v-model="formData.thumbnail" />
      </el-form-item>
      <el-form-item label="发布时间" prop="pubDate">
        <el-date-picker
          v-model="formData.pubDate"
          type="date"
          value-format="x"
          placeholder="选择发布时间"
        />
      </el-form-item>
    </el-form>
    <template #footer>
      <el-button @click="submitForm" type="primary" :disabled="formLoading">确 定</el-button>
      <el-button @click="dialogVisible = false">取 消</el-button>
    </template>
  </Dialog>
</template>
<script setup lang="ts">
import { ArticleApi, ArticleVO } from '@/api/cms/article'
import { MenuApi } from '@/api/cms/cmsMenu'
import {defaultProps,handleTree} from "@/utils/tree";
/** 文章 表单 */
defineOptions({ name: 'ArticleForm' })

const { t } = useI18n() // 国际化
const message = useMessage() // 消息弹窗

const dialogVisible = ref(false) // 弹窗的是否展示
const dialogTitle = ref('') // 弹窗的标题
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formType = ref('') // 表单的类型：create - 新增；update - 修改
const formData = ref({
  id: undefined,
  title: undefined,
  menuId: undefined,
  introduction: undefined,
  content: undefined,
  author: undefined,
  thumbnail: undefined,
  pubDate: undefined,
})
const formRules = reactive({
})
const formRef = ref() // 表单 Ref
const menuTree = ref() // 树形结构
/** 打开弹窗 */
const open = async (type: string, id?: number) => {
  dialogVisible.value = true
  dialogTitle.value = t('action.' + type)
  formType.value = type
  resetForm()
  // 修改时，设置数据
  if (id) {
    formLoading.value = true
    try {
      formData.value = await ArticleApi.getArticle(id)
    } finally {
      formLoading.value = false
    }
  }

  await getMenuTree()
}
defineExpose({ open }) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
  // 校验表单
  await formRef.value.validate()
  // 提交请求
  formLoading.value = true
  try {
    const data = formData.value as unknown as ArticleVO
    if (formType.value === 'create') {
      await ArticleApi.createArticle(data)
      message.success(t('common.createSuccess'))
    } else {
      await ArticleApi.updateArticle(data)
      message.success(t('common.updateSuccess'))
    }
    dialogVisible.value = false
    // 发送操作成功的事件
    emit('success')
  } finally {
    formLoading.value = false
  }
}

/** 重置表单 */
const resetForm = () => {
  formData.value = {
    id: undefined,
    title: undefined,
    menuId: undefined,
    introduction: undefined,
    content: undefined,
    author: undefined,
    thumbnail: undefined,
    pubDate: undefined,
  }
  formRef.value?.resetFields()
}

/** 获得菜单树 */
const getMenuTree = async () => {
  menuTree.value = []
  const data = await MenuApi.getMenuList()
  const root: Tree = { id: 0, name: '顶级菜单', children: [] }
  root.children = handleTree(data, 'id', 'parentId')
  menuTree.value.push(root)
}
</script>
